Opal is a slightly translucent gemstone. Opal is the gemstone for Venus. Wearing Opal brings love and happiness in the life. Opal benefits are numerous. Opal gemstone was formed many years ago in cracks and spaces by the combination of silica and water. It is the most colorful of all the gems and the play of iridescent colors makes it more beautiful of all the gems. Opal is found in many colors, but the most common ones are white, grey, pink, slate, olive brown, and black. Opal is the national gemstone of Australia.Opal is the birthstone for the people whose Venus is strong. Opal benefits the people who are in the profession of dairy products, tourism, hotel, art and craft, cinema, movies, romance and dating.